wifi sample

Hardware board

CC3000

Next, connect the enable and interrupt lines: 

VBEN to Digital 5

 IRQ to Digital 3 

 Now, connect 

 SPI: CLK to Digital 13

 MISO to Digital 12

 MOSI to Digital 11 

 CS to Digital 10

#define WLAN_SSID "myNetwork" // cannot be longer than 32 characters! 

#define WLAN_PASS "myPassword" 

// Security can be WLAN_SEC_UNSEC, WLAN_SEC_WEP, WLAN_SEC_WPA or //WLAN_SEC_WPA2 

#define WLAN_SECURITY WLAN_SEC_WPA2 

// On an UNO, SCK = 13, MISO = 12, and MOSI = 11

//

Adafruit_CC3000(uint8_t csPin, uint8_t irqPin, uint8_t vbatPin, uint8_t spispeed = SPI_CLOCK_DIVIDER);

begin(uint8_t patchReq = 0, bool useSmartConfigData = false);

sample code 如下:

#include <Adafruit_CC3000.h>
#include <SPI.h>
#include "utility/debug.h"
#include "utility/socket.h"

// These are the interrupt and control pins
#define ADAFRUIT_CC3000_IRQ   3  // MUST be an interrupt pin!
// These can be any two pins
#define ADAFRUIT_CC3000_VBAT  5
#define ADAFRUIT_CC3000_CS    10
// Use hardware SPI for the remaining pins
// On an UNO, SCK = 13, MISO = 12, and MOSI = 11
Adafruit_CC3000 cc3000 = Adafruit_CC3000(ADAFRUIT_CC3000_CS, ADAFRUIT_CC3000_IRQ, ADAFRUIT_CC3000_VBAT,
                                         SPI_CLOCK_DIVIDER); // you can change this clock speed

#define WLAN_SSID       "myNetwork"           // cannot be longer than 32 characters!
#define WLAN_PASS       "myPassword"
// Security can be WLAN_SEC_UNSEC, WLAN_SEC_WEP, WLAN_SEC_WPA or WLAN_SEC_WPA2
#define WLAN_SECURITY   WLAN_SEC_WPA2

#define LISTEN_PORT           23    // What TCP port to listen on for connections.

Adafruit_CC3000_Server chatServer(LISTEN_PORT);

void setup(void)
{
  Serial.begin(115200);
  Serial.println(F("Hello, CC3000!\n"));

  Serial.print("Free RAM: "); Serial.println(getFreeRam(), DEC);

  /* Initialise the module */
  Serial.println(F("\nInitializing..."));
  if (!cc3000.begin())
  {
    Serial.println(F("Couldn't begin()! Check your wiring?"));
    while(1);
  }

  if (!cc3000.connectToAP(WLAN_SSID, WLAN_PASS, WLAN_SECURITY)) {
    Serial.println(F("Failed!"));
    while(1);
  }
 
  Serial.println(F("Connected!"));

  Serial.println(F("Request DHCP"));
  while (!cc3000.checkDHCP())
  {
    delay(100); // ToDo: Insert a DHCP timeout!
  }

  /* Display the IP address DNS, Gateway, etc. */
  while (! displayConnectionDetails()) {
    delay(1000);
  }

  /*********************************************************/
  /* You can safely remove this to save some flash memory! */
  /*********************************************************/
  Serial.println(F("\r\nNOTE: This sketch may cause problems with other sketches"));
  Serial.println(F("since the .disconnect() function is never called, so the"));
  Serial.println(F("AP may refuse connection requests from the CC3000 until a"));
  Serial.println(F("timeout period passes.  This is normal behaviour since"));
  Serial.println(F("there isn't an obvious moment to disconnect with a server.\r\n"));

  // Start listening for connections
  chatServer.begin();

  Serial.println(F("Listening for connections..."));
}

void loop(void)
{
  // Try to get a client which is connected.
  Adafruit_CC3000_ClientRef client = chatServer.available();
  if (client) {
     // Check if there is data available to read.
     if (client.available() > 0) {
       // Read a byte and write it to all clients.
       uint8_t ch = client.read();
       chatServer.write(ch);
     }
  }
}

/**************************************************************************/
/*!
    @brief  Tries to read the IP address and other connection details
*/
/**************************************************************************/
bool displayConnectionDetails(void)
{
  uint32_t ipAddress, netmask, gateway, dhcpserv, dnsserv;

  if(!cc3000.getIPAddress(&ipAddress, &netmask, &gateway, &dhcpserv, &dnsserv))
  {
    Serial.println(F("Unable to retrieve the IP Address!\r\n"));
    return false;
  }
  else
  {
    Serial.print(F("\nIP Addr: ")); cc3000.printIPdotsRev(ipAddress);
    Serial.print(F("\nNetmask: ")); cc3000.printIPdotsRev(netmask);
    Serial.print(F("\nGateway: ")); cc3000.printIPdotsRev(gateway);
    Serial.print(F("\nDHCPsrv: ")); cc3000.printIPdotsRev(dhcpserv);
    Serial.print(F("\nDNSserv: ")); cc3000.printIPdotsRev(dnsserv);
    Serial.println();
    return true;
  }
}


Ref : https://www.openhacks.com/uploadsproductos/adafruit-cc3000-wifi.pdf